diff --git a/.github/workflows/code_layout.yml b/.github/workflows/code_layout.yml
new file mode 100644
index 00000000000..ad265076cfc
--- /dev/null
+++ b/.github/workflows/code_layout.yml
@@ -0,0 +1,147 @@
+name: Code Layout
+
+on: [push, pull_request]
+
+jobs:
+  documentation_checks:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v2
+      - name: Set up Python 3.7
+        uses: actions/setup-python@v1
+        with:
+          python-version: 3.7
+      - name: Install Requirements
+        run: |
+          sudo apt install -y \
+              doxygen \
+              cpanminus \
+              libyaml-tiny-perl \
+              libio-socket-ssl-perl \
+              libhttp-date-perl \
+              libgetopt-long-descriptive-perl \
+              libmoo-perl \
+              libnamespace-clean-perl \
+              libpath-tiny-perl \
+              libpod-constants-perl \
+              libscalar-list-utils-perl \
+              libsort-key-perl \
+              libstrictures-perl \
+              libstring-escape-perl \
+              libtry-tiny-perl \
+              expect
+            cpanm --notest App::Licensecheck
+          python -m pip install --upgrade pip
+          pip install autopep8 nose2 mock termcolor
+      - name: Make
+        run: |
+         mkdir build
+         cd build
+         cmake -DWITH_SERVER=ON -DUSE_CCACHE=OFF -DWITH_CORE=OFF -DWITH_APIDOC=ON -DWITH_ASTYLE=ON -DENABLE_TESTS=ON -DWITH_DOT=NO ..
+          make -j3
+      - name: Run Tests
+        run: cd build && ctest -R doc
+
+  license_check:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v2
+      - name: Install Requirements
+        run: |
+          sudo apt install -y \
+              cpanminus
+            cpanm --notest App::Licensecheck
+
+      - name: Run License Check
+        run: ./tests/code_layout/test_licenses.sh
+
+  shell_check:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v2
+      - name: Install Requirements
+        run: |
+            sudo apt install -y \
+              shellcheck
+
+      - name: Run Shellcheck
+        run: ./tests/code_layout/test_shellcheck.sh
+    
+  banned_keywords_check:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v2
+      - name: Run Banned Keywords Test
+        run: ./tests/code_layout/test_banned_keywords.sh
+    
+  def_window_title_check:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v2
+      - name: Def Window Title Test
+        run: ./tests/code_layout/test_defwindowtitle.sh
+    
+  doxygen_layout_check:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v2
+      - name: Doxygen Layout Test
+        run: ./tests/code_layout/test_doxygen_layout.sh
+    
+  indentation_check:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v2
+      - name: Indentation Test
+        run: ./scripts/verify_indentation.sh
+    
+  spell_check:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v2
+      - name: Indentation Test
+        run: ./scripts/spell_check/spell_test.sh
+    
+  sip_check:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Set up Python 3.7
+        uses: actions/setup-python@v1
+        with:
+          python-version: 3.7
+      - name: Install Requirements
+        run: |
+          sudo apt install -y \
+              cpanminus \
+              libyaml-tiny-perl \
+              libio-socket-ssl-perl \
+              libhttp-date-perl \
+              libgetopt-long-descriptive-perl \
+              libmoo-perl \
+              libnamespace-clean-perl \
+              libpath-tiny-perl \
+              libpod-constants-perl \
+              libscalar-list-utils-perl \
+              libsort-key-perl \
+              libstrictures-perl \
+              libstring-escape-perl \
+              libtry-tiny-perl \
+              expect
+          python -m pip install --upgrade pip
+          pip install autopep8 nose2 mock termcolor
+      - name: Checkout
+        uses: actions/checkout@v2
+      - name: Sip Checks
+        run: ./tests/code_layout/test_sipify.sh
+      - name: Sip Include Test
+        run: ./tests/code_layout/test_sip_include.sh
+      - name: Sip Files Up To Date
+        run: ./tests/code_layout/test_sipfiles_uptodate.sh
diff --git a/cmake_templates/Doxyfile.in b/cmake_templates/Doxyfile.in
index 63b467e9cfa..917c0e9d348 100644
--- a/cmake_templates/Doxyfile.in
+++ b/cmake_templates/Doxyfile.in
@@ -2143,7 +2143,7 @@ PERL_PATH              = /usr/bin/env perl
 # powerful graphs.
 # The default value is: YES.
 
-CLASS_DIAGRAMS         = YES
+CLASS_DIAGRAMS         = @HAVE_DOT@
 
 # You can define message sequence charts within doxygen comments using the \msc
 # command. Doxygen will then run the mscgen tool (see:
@@ -2174,7 +2174,7 @@ HIDE_UNDOC_RELATIONS   = YES
 # set to NO
 # The default value is: NO.
 
-HAVE_DOT               = YES
+HAVE_DOT               = @HAVE_DOT@
 
 # The DOT_NUM_THREADS specifies the number of dot invocations doxygen is allowed
 # to run in parallel. When set to 0 doxygen will base this on the number of
diff --git a/doc/CMakeLists.txt b/doc/CMakeLists.txt
index d1366a9dcc8..3889d99f33b 100644
--- a/doc/CMakeLists.txt
+++ b/doc/CMakeLists.txt
@@ -180,6 +180,8 @@ IF(WITH_APIDOC)
     IF(GENERATE_QHP)
       INSTALL(FILES ${CMAKE_CURRENT_BINARY_DIR}/api/qch/qgis.qch DESTINATION ${QGIS_DATA_DIR}/doc/api)
     ENDIF(GENERATE_QHP)
+    SET(WITH_DOT YES CACHE STRING "Determines if the dot application should be used to generate class diagrams for the documentation")
+    MARK_AS_ADVANCED(WITH_DOT)
   ELSE(DOXYGEN_FOUND)
     MESSAGE(STATUS "QGIS api documentation not built - Doxygen not found")
   ENDIF(DOXYGEN_FOUND)